Browsing by Author "Troncoso, Ricardo"

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    Dynamics and BPS states of AdS5 supergravity with a Gauss-Bonnet term
    (2006) Miskovic, Olivera; Troncoso, Ricardo; Zanelli, Jorge
    Some dynamical aspects of five-dimensional supergravity as a Chem-Simons theory for the SU(2,2 vertical bar N) group, are analyzed. The gravitational sector is described by the Einstein-Hilbert action with negative cosmological constant and a Gauss-Bonnet term with a fixed coupling. The interaction between matter and gravity is characterized by intricate couplings which give rise to dynamical features not present in standard theories. Depending on the location in phase space, the dynamics can possess different number of propagating degrees of freedom, including purely topological sectors. This inhomogeneity of phase space requires special care in the analysis.